From 4708c0d8b58a24bdb93f5710622067a244ac7595 Mon Sep 17 00:00:00 2001
From: Benjamin Yeh <bentyeh@users.noreply.github.com>
Date: Wed, 15 Jan 2020 10:35:22 -0800
Subject: [PATCH] Improve grammatical consistency (#774)

---
 relational-data.Rmd | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/relational-data.Rmd b/relational-data.Rmd
index bf6af4b..b5019e1 100644
--- a/relational-data.Rmd
+++ b/relational-data.Rmd
@@ -106,7 +106,7 @@ There are two types of keys:
   each plane in the `planes` table.
 
 * A __foreign key__ uniquely identifies an observation in another table.
-  For example, the `flights$tailnum` is a foreign key because it appears in the 
+  For example, `flights$tailnum` is a foreign key because it appears in the 
   `flights` table where it matches each flight to a unique plane.
 
 A variable can be both a primary key _and_ a foreign key. For example, `origin` is part of the `weather` primary key, and is also a foreign key for the `airport` table.